Glass brick



FIG. 1: is a front perspective view of a glass brick, showing my new design;

FIG. 2: is a front view thereof.

FIG. 3: is a rear view thereof.

FIG. 4: is a side view thereof.

FIG. 5: is a perspective view as in FIG. 1 but with a transverse cross-section of the brick.

FIG. 6: is a perspective view of one longitudinal half of the brick revealing an inner shaped surface.

The other sides are substantially like the side view shown. 

The ornamental design for a glass brick, as shown and described. 